package com.atguigu.registration.hosp.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.atguigu.registration.hosp.repository.DepartmentRepository;
import com.atguigu.registration.hosp.service.DepartmentService;
import com.atguigu.registration.model.hosp.Department;
import com.atguigu.registration.vo.hosp.DepartmentQueryVo;
import com.atguigu.registration.vo.hosp.DepartmentVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * @Author: Jiang Yizhi
 * @Date: 2022/4/25 7:56 PM
 */
@Service
public class DepartmentServiceImpl implements DepartmentService {

    @Autowired
    private DepartmentRepository departmentRepository;

    @Override
    public void save(Map<String, Object> paramMap) {
        /** 把paramMap转换成department对象 */
        String paramMapString = JSONObject.toJSONString(paramMap);
        Department department = JSONObject.parseObject(paramMapString, Department.class);
        /** 根据医院编号和科室编号查询 */
        Department departmentExist = departmentRepository.getDepartmentByHoscodeAndDepcode(department.getHoscode(), department.getDepcode());
        if (departmentExist != null) {
            departmentExist.setUpdateTime(new Date());
            departmentExist.setIsDeleted(0);
            departmentRepository.save(departmentExist);
        } else {
            department.setCreateTime(new Date());
            department.setUpdateTime(new Date());
            department.setIsDeleted(0);
            departmentRepository.save(department);
        }

    }

    @Override
    public Page<Department> findPageDepartment(int page, int limit, DepartmentQueryVo departmentQueryVo) {
        Department department = new Department();
        BeanUtils.copyProperties(departmentQueryVo,department);
        department.setIsDeleted(0);
        /** 创建一个Pageble对象，里面设置当前页和每页记录数 */
        Pageable pageable = PageRequest.of(page - 1, limit);
        /** 创建example对象 */
        ExampleMatcher matcher = ExampleMatcher.matching()
                .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING)
                .withIgnoreCase(true);
        Example<Department> example = Example.of(department, matcher);
        Page<Department> all = departmentRepository.findAll(example, pageable);
        return all;
    }

    @Override
    public void remove(String hoscode, String depcode) {
        /** 医院编号和科室编号 */
        Department department = departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);

        if (department != null) {
            /** 调用方法删除 */
            departmentRepository.deleteById(department.getId());
        }
    }

    /** 根据医院编号查询科室列表 */
    @Override
    public List<DepartmentVo> findDeptTree(String hoscode) {
        /** 创建list集合，用于封装数据 */
        List<DepartmentVo> result = new ArrayList<>();
        /** 根据医院编号，查询所有科室信息 */
        Department departmentQuery = new Department();
        departmentQuery.setHoscode(hoscode);
        Example example = Example.of(departmentQuery);
        /** 所有科室列表 */
        List<Department> departmentList = departmentRepository.findAll(example);
        /** 根据大科室编号bigcode分组，获得每个大科室下级子科室 */
        Map<String, List<Department>> departmentMap = departmentList.stream().collect(Collectors.groupingBy(Department::getBigcode));
        /** 遍历map集合 */
        for (Map.Entry<String, List<Department>> entry: departmentMap.entrySet()) {
            /** 大科室编号 */
            String bigCode = entry.getKey();
            /** 大科室编号对应的全部数据 */
            List<Department> department1List = entry.getValue();
            /** 封装大科室 */
            DepartmentVo departmentVo1 = new DepartmentVo();
            departmentVo1.setDepcode(bigCode);
            departmentVo1.setDepname(department1List.get(0).getBigname());
            /** 封装小科室 */
            List<DepartmentVo> children = new ArrayList<>();
            for (Department department: department1List) {
                DepartmentVo departmentVo2 = new DepartmentVo();
                departmentVo2.setDepcode(department.getDepcode());
                departmentVo2.setDepname(department.getDepname());
                /** 封装到children集合 */
                children.add(departmentVo2);
            }
            /** 把小科室的集合放到大科室children里面 */
            departmentVo1.setChildren(children);
            /** 放到最终result里面 */
            result.add(departmentVo1);
        }
        return result;
    }

    @Override
    public String getDepName(String hoscode, String depcode) {
        Department department = departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);
        if (department != null) {
            return department.getDepname();
        }
        return null;
    }

    @Override
    public Department getDepartment(String hoscode, String depcode) {
        return departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);
    }

}
